Yarn tension device



Sept. 1's, 192s. 1,468,489

J. O. M KEAN YARN TENSION 'DEVICE Filed Nov. 10. 1922 IN V EN TORfizw/zw- A TTOR N E YAS' Patented Sept. 18, 1923.

lAtSAhd lnnrrensrarns rarenr WERE.

Joan o. MoKEAN, or wnsTrrnLn, MASSACHUSETTS, assrenor. To FOSTER MACHINEoomrnnr, orwnsTrrELn, MASSACHUSETTS, A CORPORATION OEMASSACHUSETTS.

YARN TENSION DEVICE.

Application filed November 10, 1922. Serial No. 660,093.

T all whom it may concern:

. Be it, known that 1, JOHN Q'lvfoKnim', a citizen of the United States,and resident of Nestfielchin the county of Hampden and State ofMassachusetts, have invented a new from; the yarn support, on which pinthere w in the is loosely mounted a gravity operated weighted tensionwasher normally resting on the yarn support.

Myinven'tion comprises a novel guard for preventing the unintentionalremoval of the washer. which guard is mounted to yield vertically and toswing laterallyinto and out of {its operative position over the top ofthe pin, means being provided for yieldingly holding the guard in itsoperative position; the guard when swung into its inoperative position,permitting the removaland replacement of the tension washer.

A practical embodiment of my invention is represented in theaccompanying drawings. in which Fig. 1 represents in top plana devicefor guiding, tensioning and clearing yarn, with my invention'appliedthereto.

Fig. 2 represents a side view of the same.

Fig. 3 represents a front View.

Fig. 4 represents a detail section taken plane of the line IV-IV of Fig.1.

Fig. 5 represents a detail section taken in the plane of the line V-V ofFig. 1.

The bracket as herein constructed com prises the longitudinal-portion 1terminating atone end in a turned-back portion 2 and at its other end'inupwardly and out wardly inclined ears 3 and 1.

A loop is formed at one side of the portion 1 of the bracket, which loopcomprises the lateral branches 5 and 6 connected by the longitudinalbranch 7. An arm 8 projects forwardly from the lateral branch 6 to forma suitable yarn support in the tension device.

A pin 9 uprises from the arm 8, upon which pin is loosely mounted theweighted tension washer 10, between which washer and the top surface ofthe arm 8 the yarn is passed on its way to any desired point, as forinstance a slub catcher.

A lug 11 projects laterally from the portion 1 of the bracket intheopposite direction from the branch 6 of the loop, into which lug isscrewed the pivot pin 12 on which a vertically yielding laterallyswinging guard 13 is pivoted. The vertically yielding movement of thisguard is provided for in the present instance by a recess 1 1, withinwhich there is located a coil spring 15 interposed between the bottom ofthe recess and the head of the pin 12. The outer end of this guardisprovided with a portion 16, which projects over the top of the pin 9when the guard isswung into its operative position. A space is leftbetween the top of the pin and the guard so that lint which gathers onthe pin will have an opportunity to readily free itself off the top ofthe pin.

Meansare provided for yieldingly holding the ,guard in its operativeposition over and spaced from the top of the pin, which means is hereinshown as a notch and projection connection between the guard and theturnedback portion 2 of the bracket; the notch 17 being formed in theguard and theprojection 18 being formed on the said turned-back ortion.

' When the guard is swung back out of its operative position it will beseen that the weighted washer 10 may be readily removed from or replacedon the pin 9. When the guard is swung into its operative position, thewasher is held against unintentional removal.

The slub catcher shown herein forms no part of the present invention. Itis shown as comprising two coacting members, one having a slot withwalls forming a portion of the yarn clearing hole and the other with a.graduated surface forming the remaining portion of the said yarnclearing hole. In the present instance the fixed member'is the branch 5of the loop hereinbefore described, which branch is shown as providedwith an outwardly and downwardly inclined slot 19 across its upper face,the divergent walls of which slot form two sides of a triangular yarnclearing hole. The other member of the slab catcher is herein shown ascomprising a two-armed lever 20 pivoted between the upwardly andoutwardly inclined ears and 1 of the bracket on an outwardly anddownwardly inclined pivot screw 21. One arm of this lever may beprovided with a handle 22 for manipulating the lever. The

other arm of. the lever is provided with a rotatively adjustable disc23' having its cireumferentially graduated 01 tapered pe ripheralsurface 24 lo ited. normally in the outwardly and' downwardly inclinedslot of the other-member with the side edges of the disc in contact withthe divergent wallsof the said slot, to form the third side of atrisupport to swinorlaterally into and out of its operative position,and additional means tonyieldingly holding the guard in its op erativeposition. a i

2; In a-device for tensioning yarn, a suitable; su pport, a pinuprising. therefrom, a weighted tension washer loosely mountedon saidspin, a washer guard pivoted on the supporttoswing' laterally intoandioutof it's operative: position, and additional coa'cting' means ontheguard and support for yieldinglyl holding. the guardiii its operativeposition; V a

. 3:. -In;a-- device, fortens'ioning yarn, a suit able yarn support, apin uprisingtherefrom, weighted tension washer loosely mounted on. saidpin, and a vertically yielding Washer guard pivoted on. the support toswing);v laterally. into and out of its" operative position. 4. In adevice for tensioning yarn, a suitable-yarn support, a pin uprisingtherefrom, a weighted tension washer loosely mounted on said? pin,.. a.vertically yieldingwasher guard pivoted on the support to swing laterally into and outvof it s operative'position, and n'eans for yielding-1yholding the guard in its operative position.

5;- In a device for able "yarn support,

tensioningyarn," a suita 13111- uprising there;

from,- a weightedtens'ionwasher loosely 7 mount'cd on said swinglaterally intoand out of its operative position, andcoacting meanson'tlie guard and: support for the guard in its operativeposition;

6. In a device for tensioningfyarn,a suitable yarn support, pin-uprisingtherefrom,

aiweightecl tension washer-looselyimounted on said pin,. a verticallyyielding washer {guard pivotectonr the support to swing later: ally intoand out of its operative position, and a:

tween the guardand'supportfto hold the guard in' its operative position:

lnit'estimonmthat ljrclainrthe foregoing V notch andprojectionconnection' lie-1 pin, a-vertic'a-lly yielding washer guard pivotedonthe support to i yield-ingly holding as my invention, I'liave; signedmy name this eighth: day'of November, 71922.. r V "JGHN O. MoKEANi V

